http://xmlgraphics.apache.org/batik/batik-awt-util/: Batik AWT utilities (Apache Software Foundation) 
public class org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber
  minor version: 0
  major version: 59
  flags: flags: (0x0021) ACC_PUBLIC, ACC_SUPER
  this_class: org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber
  super_class: java.lang.Object
{
  int offset;
    descriptor: I
    flags: (0x0000) 

  byte[] magicNumber;
    descriptor: [B
    flags: (0x0000) 

  byte[] buffer;
    descriptor: [B
    flags: (0x0000) 

  public void <init>(int, byte[]);
    descriptor: (I[B)V
    flags: (0x0001) ACC_PUBLIC
    Code:
      stack=2, locals=3, args_size=3
        start local 0 // org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber this
        start local 1 // int offset
        start local 2 // byte[] magicNumber
         0: .line 57
            aload 0 /* this */
            invokespecial java.lang.Object.<init>:()V
         1: .line 58
            aload 0 /* this */
            iload 1 /* offset */
            putfield org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.offset:I
         2: .line 59
            aload 0 /* this */
            aload 2 /* magicNumber */
            invokevirtual byte[].clone:()Ljava/lang/Object;
            checkcast byte[]
            putfield org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.magicNumber:[B
         3: .line 60
            aload 0 /* this */
            aload 2 /* magicNumber */
            arraylength
            newarray 8
            putfield org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.buffer:[B
         4: .line 61
            return
        end local 2 // byte[] magicNumber
        end local 1 // int offset
        end local 0 // org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber this
      LocalVariableTable:
        Start  End  Slot         Name  Signature
            0    5     0         this  Lorg/apache/batik/ext/awt/image/spi/MagicNumberRegistryEntry$MagicNumber;
            0    5     1       offset  I
            0    5     2  magicNumber  [B
    MethodParameters:
             Name  Flags
      offset       
      magicNumber  

  int getReadlimit();
    descriptor: ()I
    flags: (0x0000) 
    Code:
      stack=2, locals=1, args_size=1
        start local 0 // org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber this
         0: .line 68
            aload 0 /* this */
            getfield org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.offset:I
            aload 0 /* this */
            getfield org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.magicNumber:[B
            arraylength
            iadd
            ireturn
        end local 0 // org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0    1     0  this  Lorg/apache/batik/ext/awt/image/spi/MagicNumberRegistryEntry$MagicNumber;

  boolean isMatch(java.io.InputStream);
    descriptor: (Ljava/io/InputStream;)Z
    flags: (0x0000) 
    Code:
      stack=5, locals=6, args_size=2
        start local 0 // org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber this
        start local 1 // java.io.InputStream is
         0: .line 76
            iconst_0
            istore 2 /* idx */
        start local 2 // int idx
         1: .line 77
            aload 1 /* is */
            aload 0 /* this */
            invokevirtual org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.getReadlimit:()I
            invokevirtual java.io.InputStream.mark:(I)V
         2: .line 80
            goto 11
         3: .line 81
      StackMap locals: int
      StackMap stack:
            aload 1 /* is */
            aload 0 /* this */
            getfield org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.offset:I
            iload 2 /* idx */
            isub
            i2l
            invokevirtual java.io.InputStream.skip:(J)J
            l2i
            istore 3 /* rn */
        start local 3 // int rn
         4: .line 82
            iload 3 /* rn */
            iconst_m1
            if_icmpne 10
         5: .line 109
            aload 1 /* is */
            invokevirtual java.io.InputStream.reset:()V
         6: .line 110
            goto 9
      StackMap locals: org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber java.io.InputStream int int
      StackMap stack: java.io.IOException
         7: astore 5 /* ioe */
        start local 5 // java.io.IOException ioe
         8: .line 111
            new java.io.StreamCorruptedException
            dup
            aload 5 /* ioe */
            invokevirtual java.io.IOException.getMessage:()Ljava/lang/String;
            invokespecial java.io.StreamCorruptedException.<init>:(Ljava/lang/String;)V
            athrow
        end local 5 // java.io.IOException ioe
         9: .line 83
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
        10: .line 85
      StackMap locals:
      StackMap stack:
            iload 2 /* idx */
            iload 3 /* rn */
            iadd
            istore 2 /* idx */
        end local 3 // int rn
        11: .line 80
      StackMap locals:
      StackMap stack:
            iload 2 /* idx */
            aload 0 /* this */
            getfield org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.offset:I
            if_icmplt 3
        12: .line 88
            iconst_0
            istore 2 /* idx */
        13: .line 89
            goto 22
        14: .line 90
      StackMap locals:
      StackMap stack:
            aload 1 /* is */
            aload 0 /* this */
            getfield org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.buffer:[B
            iload 2 /* idx */
            aload 0 /* this */
            getfield org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.buffer:[B
            arraylength
            iload 2 /* idx */
            isub
            invokevirtual java.io.InputStream.read:([BII)I
            istore 3 /* rn */
        start local 3 // int rn
        15: .line 91
            iload 3 /* rn */
            iconst_m1
            if_icmpne 21
        16: .line 109
            aload 1 /* is */
            invokevirtual java.io.InputStream.reset:()V
        17: .line 110
            goto 20
      StackMap locals: org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber java.io.InputStream int int
      StackMap stack: java.io.IOException
        18: astore 5 /* ioe */
        start local 5 // java.io.IOException ioe
        19: .line 111
            new java.io.StreamCorruptedException
            dup
            aload 5 /* ioe */
            invokevirtual java.io.IOException.getMessage:()Ljava/lang/String;
            invokespecial java.io.StreamCorruptedException.<init>:(Ljava/lang/String;)V
            athrow
        end local 5 // java.io.IOException ioe
        20: .line 92
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
        21: .line 94
      StackMap locals:
      StackMap stack:
            iload 2 /* idx */
            iload 3 /* rn */
            iadd
            istore 2 /* idx */
        end local 3 // int rn
        22: .line 89
      StackMap locals:
      StackMap stack:
            iload 2 /* idx */
            aload 0 /* this */
            getfield org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.buffer:[B
            arraylength
            if_icmplt 14
        23: .line 97
            iconst_0
            istore 3 /* i */
        start local 3 // int i
        24: goto 32
        25: .line 98
      StackMap locals: int
      StackMap stack:
            aload 0 /* this */
            getfield org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.magicNumber:[B
            iload 3 /* i */
            baload
            aload 0 /* this */
            getfield org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.buffer:[B
            iload 3 /* i */
            baload
            if_icmpeq 31
        26: .line 109
            aload 1 /* is */
            invokevirtual java.io.InputStream.reset:()V
        27: .line 110
            goto 30
      StackMap locals:
      StackMap stack: java.io.IOException
        28: astore 5 /* ioe */
        start local 5 // java.io.IOException ioe
        29: .line 111
            new java.io.StreamCorruptedException
            dup
            aload 5 /* ioe */
            invokevirtual java.io.IOException.getMessage:()Ljava/lang/String;
            invokespecial java.io.StreamCorruptedException.<init>:(Ljava/lang/String;)V
            athrow
        end local 5 // java.io.IOException ioe
        30: .line 99
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
        31: .line 97
      StackMap locals:
      StackMap stack:
            iinc 3 /* i */ 1
      StackMap locals:
      StackMap stack:
        32: iload 3 /* i */
            aload 0 /* this */
            getfield org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber.magicNumber:[B
            arraylength
            if_icmplt 25
        end local 3 // int i
        33: .line 102
            goto 46
      StackMap locals: org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber java.io.InputStream int
      StackMap stack: java.io.IOException
        34: pop
        35: .line 109
            aload 1 /* is */
            invokevirtual java.io.InputStream.reset:()V
        36: .line 110
            goto 39
      StackMap locals:
      StackMap stack: java.io.IOException
        37: astore 5 /* ioe */
        start local 5 // java.io.IOException ioe
        38: .line 111
            new java.io.StreamCorruptedException
            dup
            aload 5 /* ioe */
            invokevirtual java.io.IOException.getMessage:()Ljava/lang/String;
            invokespecial java.io.StreamCorruptedException.<init>:(Ljava/lang/String;)V
            athrow
        end local 5 // java.io.IOException ioe
        39: .line 103
      StackMap locals:
      StackMap stack:
            iconst_0
            ireturn
        40: .line 104
      StackMap locals:
      StackMap stack: java.lang.Throwable
            astore 4
        41: .line 109
            aload 1 /* is */
            invokevirtual java.io.InputStream.reset:()V
        42: .line 110
            goto 45
      StackMap locals: org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber java.io.InputStream int top java.lang.Throwable
      StackMap stack: java.io.IOException
        43: astore 5 /* ioe */
        start local 5 // java.io.IOException ioe
        44: .line 111
            new java.io.StreamCorruptedException
            dup
            aload 5 /* ioe */
            invokevirtual java.io.IOException.getMessage:()Ljava/lang/String;
            invokespecial java.io.StreamCorruptedException.<init>:(Ljava/lang/String;)V
            athrow
        end local 5 // java.io.IOException ioe
        45: .line 113
      StackMap locals:
      StackMap stack:
            aload 4
            athrow
        46: .line 109
      StackMap locals: org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber java.io.InputStream int
      StackMap stack:
            aload 1 /* is */
            invokevirtual java.io.InputStream.reset:()V
        47: .line 110
            goto 50
      StackMap locals:
      StackMap stack: java.io.IOException
        48: astore 5 /* ioe */
        start local 5 // java.io.IOException ioe
        49: .line 111
            new java.io.StreamCorruptedException
            dup
            aload 5 /* ioe */
            invokevirtual java.io.IOException.getMessage:()Ljava/lang/String;
            invokespecial java.io.StreamCorruptedException.<init>:(Ljava/lang/String;)V
            athrow
        end local 5 // java.io.IOException ioe
        50: .line 114
      StackMap locals:
      StackMap stack:
            iconst_1
            ireturn
        end local 2 // int idx
        end local 1 // java.io.InputStream is
        end local 0 // org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber this
      LocalVariableTable:
        Start  End  Slot  Name  Signature
            0   51     0  this  Lorg/apache/batik/ext/awt/image/spi/MagicNumberRegistryEntry$MagicNumber;
            0   51     1    is  Ljava/io/InputStream;
            1   51     2   idx  I
            4   11     3    rn  I
           15   22     3    rn  I
           24   33     3     i  I
            8    9     5   ioe  Ljava/io/IOException;
           19   20     5   ioe  Ljava/io/IOException;
           29   30     5   ioe  Ljava/io/IOException;
           38   39     5   ioe  Ljava/io/IOException;
           44   45     5   ioe  Ljava/io/IOException;
           49   50     5   ioe  Ljava/io/IOException;
      Exception table:
        from    to  target  type
           5     6       7  Class java.io.IOException
          16    17      18  Class java.io.IOException
          26    27      28  Class java.io.IOException
           2     5      34  Class java.io.IOException
          10    16      34  Class java.io.IOException
          21    26      34  Class java.io.IOException
          31    33      34  Class java.io.IOException
          35    36      37  Class java.io.IOException
           2     5      40  any
          10    16      40  any
          21    26      40  any
          31    35      40  any
          41    42      43  Class java.io.IOException
          46    47      48  Class java.io.IOException
    Exceptions:
      throws java.io.StreamCorruptedException
    MethodParameters:
      Name  Flags
      is    
}
SourceFile: "MagicNumberRegistryEntry.java"
NestHost: org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry
InnerClasses:
  public MagicNumber = org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry$MagicNumber of org.apache.batik.ext.awt.image.spi.MagicNumberRegistryEntry